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Slow-scan television (SSTV) is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color. A literal term for SSTV is narrowband television .
The experiment was successful and the international space station even broadcast the message back to earth. Many of the space station crew are also amateur radio operators. After their standard work day (based on UTC time), they might use their evening free time to communicate with family and other hams via amateur radio.
A frame taken from an animation of slow scan TV images taken on a flyaround inspection of the station by the shuttle. Pettit and Kimbrough used the station's Canadarm2 to move Leonardo from the Harmony module and placed in the shuttle's cargo bay at 21:52 UTC.
There are three ways to reduce the bandwidth of a video signal: reduce the scan rate, reduce the image size, and/or (with digital television) use heavier compression.When the scan rate is reduced, this is referred to as slow-scan TV or, in the most extreme cases when the scan rate is too slow to simulate motion, freeze frame television.
The television images were displayed on a slow scan monitor coated with a long persistency phosphor. The persistency was selected to optimally match the nominal maximum frame rate. One frame of TV identification was received for each incoming TV frame and was displayed in real time at a rate compatible with that of the incoming image.
The TV photos were displayed back on the Earth on a slow-scan TV monitor that was coated with a long-persistence phosphor. Its persistence had been selected to match the nominal maximum frame rate . One frame of TV identification was received for each incoming TV photo, and the picture was displayed in real-time at a rate compatible with that ...
NASA’s Perseverance Mars rover used its right-front navigation camera to capture this first view over the rim of Jezero Crater on Dec. 10, 2024, the 1,354th Martian day, or sol, of the mission.
The television images were displayed on a slow scan monitor coated with a long persistence phosphor. The persistence was selected to optimally match the nominal maximum frame rate. One frame of TV identification was received for each incoming TV frame and was displayed in real time at a rate compatible with that of the incoming image.